It is attached to the Extension bar of the Φ22 like a sucker!
[How is it used?
I use it as a power on/off switch, not a kill switch.
I don't put it on the Handlebar, but on the Φ22 extension bar from the Handlebar, and it sticks to it without turning.
Was the installation difficult?
Quantity:It was easy to install just by removing the 2pc screws, passing them through the Handlebar and Extension bar, and then tightening the screws again.
How was your experience with it?
There is a solid sense of ON/OFF click, and the sense of use is conveyed properly.
[Included Parts:were they on?
None
[Notes]
I'm not sure if it's Waterproof or not, but I'm going to find out.

